• 2440 上内核3.4.2移植


    PS:因wifi项目中无wifi驱动,需新内核。
    转自http://blog.chinaunix.net/uid-26318500-id-4397971.html

    1.首先在内核中查找已有的默认配置文件
    find -name "*defconfig"
    [root@localhost arm]# cd arch/arm/
    [root@localhost arm]# find -name "*defconfig"
    找到一个s3c2410_defconfig。
    ./configs/at91rm9200_defconfig
    ./configs/omap1_defconfig
    ./configs/s3c2410_defconfig
    然后就以s3c2410_defconfig为基础编译内核。
    修改Makefile文件。
    到顶层目录vi Makefile
    ARCH  ?= $(SUBARCH)
    CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
    修改为:
    ARCH  ?= arm
    CROSS_COMPILE ?= arm-linux-
    wq退出
    make s3c2410_defconfig

     HOSTLD  scripts/kconfig/conf
    #
    # configuration written to .config
    #
    生成了一个.config文件。
    vi .config
    #
    # Automatically generated file; DO NOT EDIT.
    # Linux/arm 3.4.2 Kernel Configuration
    #
    CONFIG_ARM=y
    CONFIG_HAVE_PWM=y
    CONFIG_SYS_SUPPORTS_APM_EMULATION=y
    CONFIG_GENERIC_GPIO=y
    CONFIG_ARCH_USES_GETTIMEOFFSET=y
    CONFIG_KTIME_SCALAR=y
    CONFIG_HAVE_PROC_CPU=y
    CONFIG_NO_IOPORT=y
    CONFIG_STACKTRACE_SUPPORT=y
    CONFIG_HAVE_LATENCYTOP_SUPPORT=y
    CONFIG_LOCKDEP_SUPPORT=y
    CONFIG_TRACE_IRQFLAGS_SUPPORT=y
    CONFIG_HARDIRQS_SW_RESEND=y
    CONFIG_GENERIC_IRQ_PROBE=y
    CONFIG_RWSEM_GENERIC_SPINLOCK=y
    CONFIG_ARCH_HAS_CPUFREQ=y
    CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
    CONFIG_GENERIC_HWEIGHT=y
    CONFIG_GENERIC_CALIBRATE_DELAY=y
    .config 文件里是前一个命令生成的一些配置项。


    1.1将arch/arm/mach-s3c24xx/mach-smdk2440.c中的:s3c24xx_init_clocks(16934400);
    修改为:
    s3c24xx_init_clocks(12000000);
    vi arch/arm/mach-s3c24xx/mach-smdk2440.c

    2.现在试着make zImage 看看能不能支持开发板。
    make zImage
    arch/arm/mm/tlb-v4wbi.S: Assembler messages:
    arch/arm/mm/tlb-v4wbi.S:64: Error: too many positional arguments
    但出现了错误,编译没有通过。上网没有查到解决问题。
    那试试换一下交叉编译连,是不是交叉编译连太老了?
    [root@localhost linux-3.4.2]# arm-linux-gcc -v
    Reading specs from /home/hyx/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/specs
    Configured with: /work/tools/create_crosstools/crosstool-0.43/build/arm-linux/gcc-3.4.5-glibc-2.3.6/gcc-3.4.5/configure --target=arm-linux --host=i686-host_pc-linux-gnu --prefix=/work/tools/gcc-3.4.5-glibc-2.3.6 --with-float=soft --with-headers=/work/tools/gcc-3.4.5-glibc-2.3.6/arm-linux/include --with-local-prefix=/work/tools/gcc-3.4.5-glibc-2.3.6/arm-linux --disable-nls --enable-threads=posix --enable-symvers=gnu --enable-__cxa_atexit --enable-languages=c,c++ --enable-shared --enable-c99 --enable-long-long
    Thread model: posix
    gcc version 3.4.5
    这个是原来的交叉编译版本。
    在韦东山的资料D:韦东山Linux视频驱动第2期韦东Linux视频第1第2期所有源码文档图片芯片手册(1)韦东Linux视频第1第2期所有源码文档图片芯片手册毕业班_文档_图片_源码_bin中找到了arm-linux-gcc-4.3.2.tar.bz2交叉编译工具
    并复制到E:ARM6410实验资料hyx6410实验源码包hyx后上传到虚拟机。

    2.1 解压、编译、安装交叉编译连arm-linux-gcc-4.3.2.tar.bz2
    tar -vxf arm-linux-gcc-4.3.2.tar.bz2 但这个是解压到了/home/hyx/usr/local/arm/4.3.2下
    现在将其解压到根目录下
    tar -xjf arm-linux-gcc-4.3.2.tar.bz2 -C /
    ps:查看现在命令的环境变量路径
    [root@localhost hyx]# echo $PATH 
    /usr/lib/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/home/hyx/gcc-3.4.5-glibc-2.3.6/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
    修改环境变量:
    方法1:(强烈推荐)
    [root@localhost bin]# export PATH=/usr/local/arm/4.3.2/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin
    [root@localhost bin]# arm-linux-gcc -v
    方法2:
    vi /etc/profile
    # Path manipulation
    if [ "$EUID" = "0" ]; then
           pathmunge /sbin
           pathmunge /usr/sbin
           pathmunge /usr/local/sbin
           pathmunge /home/hyx/usr/local/arm/4.3.2/bin/
    fi
    wq  退出
    source /etc/profile
    arm-linux-gcc -v
    显示:
    Thread model: posix
    gcc version 4.3.2 (Sourcery G++ Lite 2008q3-72) 

    2.2 ok到此为止,交叉编译连准备好了。开始再次编译新内核3.4.2。
    make zImage
     Kernel: arch/arm/boot/zImage is ready
    /home/hyx/u-boot-1.1.6/tools/mkimage -A arm -O linux -C none -a 0x30008000 -e 0x30008000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage
    OK2440_hyx_2.3#bootm
    ## Booting image at 30000000 ...
      Image Name:   
      Created:      2014-07-29   9:16:01 UTC
      Image Type:   ARM Linux Kernel Image (uncompressed)
      Data Size:    2399720 Bytes =  2.3 MB
      Load Address: 30008000
      Entry Point:  30008000
      Verifying Checksum ... OK
    OK

    Starting kernel ...

    Uncompressing Linux... done, booting the kernel.
    undefined instruction
    pc : [<30192e0c>]    lr : [<3010800c>]
    sp : 307f7aa8  ip : 4000001c  fp : 00000020
    r10: 305ac524  r9 : 41129200  r8 : 30000100
    r7 : 0000016a  r6 : 307f6a88  r5 : 00000000  r4 : 30108000
    r3 : 0000016a  r2 : c05bf540  r1 : 4000001c  r0 : 0000016a
    Flags: nZCv  IRQs on  FIQs on  Mode UK12_32
    Resetting CPU ...
    出现如上错误信息。
    /**********************************************************/
    2014/7/30 9:40:13
    参考 http://blog.csdn.net/liangkaiming/article/details/5986680
    http://blog.csdn.net/subfate/article/details/6228730
     
    修改:
    /home/hyx/u-boot-1.1.6/tools/mkimage -A arm -O linux -C none -a 0x30008000 -e 0x30008000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage
    bootm
    最终还是不可以正常启动!!!反复查阅源代码还是找不到问题出现的地方!!
    猜测是uboot版本太低的缘故,接下来准备移植较新的uboot版本。
    uboot移植过程请查阅《2014-arm-u-boot-2012.04.01移植for2440.txt》。
    /****************************************************************************/
    2014/8/6 16:15:39
    u-boot-2012.04.01移植for2440已完成
    接下来再看看打印信息:
    nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage
    Bytes transferred = 2399784 (249e28 hex)
    ok2440-hyx-uboot-v7.3# bootm
    ## Booting kernel from Legacy Image at 30000000 ...
       Image Name:   
       Image Type:   ARM Linux Kernel Image (uncompressed)
       Data Size:    2399720 Bytes = 2.3 MiB
       Load Address: 30008000
       Entry Point:  30008000
       Verifying Checksum ... OK
       Loading Kernel Image ... OK
    OK


    Starting kernel ...


    Uncompressing Linux... done, booting the kernel.
    这里是什么错误信息没有提示,但没有进入内核而是重新启动。
    分析uboot引导内核流程:
    do_bootm
    boot_fn = boot_os[images.os.os];
    static boot_os_fn *boot_os[] = {
    #ifdef CONFIG_BOOTM_LINUX
    [IH_OS_LINUX] = do_bootm_linux,
    do_bootm_linux
    boot_jump_linux
    unsigned long machid = gd->bd->bi_arch_number;
    s = getenv("machid");
    r2 = gd->bd->bi_boot_params;
    kernel_entry(0, machid, r2); // void (*kernel_entry)(int zero, int arch, uint params);
    /****************************************************************************/
    2014/8/7 10:02:32
    再重新试下载镜像
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage
    bootm 32000000
    结果还是不行!!
    试重新制作uImag镜像:之前的镜像是用u-boot-1.1.6制作的。
    cd /home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    还是不行啊~~~~
    删除文件,重新重头开始编译。
    1.0 解压tar xzvf linux-3.4.2.tar.gz  -C ./linux-3.4.2-hyx/
    chmod 777 linux-3.4.2/ -R
    1.1 修改Makefile
    cd linux-3.4.2/
    修改:ARCH ?= $(SUBARCH)
    CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
    为ARCH ?= arm
    CROSS_COMPILE ?= arm-linux-
    1.2 选择默认配置 : make s3c2410_defconfig
    1.3 修改时钟;
    archarmmach-s3c24xxmach-smdk2440.c
    s3c24xx_init_clocks(16934400);
    改为
    s3c24xx_init_clocks(12000000);
    1.4 制作镜像:
    make zImage
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    cp arch/arm/boot/uImage arch/arm/boot/uImage-v1.0
    1.5 nfs下载到开发板启动:
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v1.0
    bootm 32000000
    OK


    Starting kernel ...


    Uncompressing Linux... done, booting the kernel.
    ??噜?帱帱?噜????????帱?帱?噜?(有乱码)
    可能是在uboot的启动参数里没有设置bootargs=console=ttySAC0 root=/dev/mtdblock3 波特率
    修改:
    set bootargs console=ttySAC0,115200 root=/dev/mtdblock3
    save
    再次nfs镜像后启动,可以正常启动,但有以下信息:
    Scanning device for bad blocks
    Creating 8 MTD partitions on "NAND":
    0x000000000000-0x000000004000 : "Boot Agent"
    mtd: partition "Boot Agent" doesn't end on an erase block -- force read-only
    0x000000000000-0x000000200000 : "S3C2410 flash partition 1"
    0x000000400000-0x000000800000 : "S3C2410 flash partition 2"
    0x000000800000-0x000000a00000 : "S3C2410 flash partition 3"
    0x000000a00000-0x000000e00000 : "S3C2410 flash partition 4"
    0x000000e00000-0x000001800000 : "S3C2410 flash partition 5"
    0x000001800000-0x000003000000 : "S3C2410 flash partition 6"
    0x000003000000-0x000008000000 : "S3C2410 flash partition 7"
    看来是没有正确分区,搜寻代码:
    Boot Agent common-smdk.c (linux-3.4.2archarmmach-s3c24xx) 4482 2012/6/9
    static struct mtd_partition smdk_default_nand_part[] = {
    将分区分为
    0x000000000000-0x000000040000 : "bootloader"
    0x000000040000-0x000000060000 : "params"
    0x000000060000-0x000000260000 : "kernel"
    0x000000260000-0x000008000000 : "root"
    修改为:


    /* NAND parititon from 2.4.18-swl5 */


    static struct mtd_partition smdk_default_nand_part[] = {
    [0] = {
    .name = "bootloader",
    .size = SZ_256K,
    .offset = 0,
    },
    [1] = {
    .name = "params",
    .offset = MTDPART_OFS_APPEND,
    .size = SZ_128K,
    },
    [2] = {
    .name = "kernel",
    .offset = MTDPART_OFS_APPEND,
    .size = SZ_2M,
    },
    [3] = {
    .name = "root",
    .offset = MTDPART_OFS_APPEND,
    .size = MTDPART_SIZ_FULL,
    },
    };
    编译:
    make zImage
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    cp arch/arm/boot/uImage arch/arm/boot/uImage-v1.1
    nfs下载到开发板启动:
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v1.1
    bootm 32000000
    NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
    Scanning device for bad blocks
    Creating 4 MTD partitions on "NAND":
    0x000000000000-0x000000040000 : "bootloader"
    0x000000040000-0x000000060000 : "params"
    0x000000060000-0x000000260000 : "kernel"
    0x000000260000-0x000008000000 : "root"
    现在识别了内核的分区了。
    2. 修改内核支持yaffs文件
    2.1 编译busybosx-1.20.0
    2.1.1 下载源码http://www.busybox.net/downloads/到D:ARM开发镜像文件linux-3.4.2-hyx镜像文件
    2.1.2 解压、配置、编译:
    tar xjf busybox-1.20.0.tar.bz2
    cd busybox-1.20.0
    make menuconfig
    修改交叉编译连:
      Busybox Settings  ---> 
      Build Options  --->        
      Cross Compiler prefix 
      arm-linux-
    2.1.3 创建文件、安装
    [root@localhost nfs_root_hyx]# mkdir fs_mini_mdev_new_hyx
    make install CONFIG_PREFIX=/home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx
    2.1.4 安装库
    cd /home/hyx/usr/local/arm/4.3.2/bin/
    find -name lib
    cd ./arm-none-linux-gnueabi/libc/armv4t/lib
    mkdir /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/lib
    mkdir /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/usr/lib -p
    cp /home/hyx/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/lib/*so*  /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/lib -d
    cp /home/hyx/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/usr/lib/*so*  /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/usr/lib -d

    2.1.5 构建etc目录、构建dev目录、其他空目录 
    拷贝已有的目录:
    cp ../fs_mini_hyx/etc ./ -rf
    [root@localhost etc]# cd ..
    [root@localhost fs_mini_mdev_new_hyx]# ls
    bin  etc  lib  linuxrc  sbin  usr
    [root@localhost fs_mini_mdev_new_hyx]# mkdir dev
    [root@localhost fs_mini_mdev_new_hyx]# cd dev/
    [root@localhost dev]# ls
    [root@localhost dev]# mknod console c 5 1
    [root@localhost dev]# mknod null c 1 3
    [root@localhost fs_mini_mdev_new_hyx]# mkdir proc mnt tmp sys root
    2.1.6 1.移植YAFFS文件系统,www.aleph1.co.uk/yaffs2 
    文件存在路径:D:韦东山Linux视频驱动第2期韦东Linux视频第1第2期所有源码文档图片芯片手册(1)
    韦东Linux视频第1第2期所有源码文档图片芯片手册毕业班_文档_图片_源码_bin毕业班第3课移植新内核_文档_图片_补丁_二进制程序
    用git下载的yaffs最新源码  yaffs2.tar.bz2
    解压
    tar xjvf yaffs2.tar.bz2
    2. 打补丁

    cd yaffs-dir
    ./patch-ker.sh c m /home/hyx/linux-3.4.2-hyx/linux-3.4.2

    3. 配置内核支持YAFFS
    File systems  --->       
    [*] Miscellaneous filesystems  --->        
    <*>   yaffs2 file system support      
    4. 编译
    make zImage
    出现错误:
    fs/yaffs2/yaffs_vfs.c:440: warning: initialization from incompatible pointer type
    fs/yaffs2/yaffs_vfs.c:445: warning: initialization from incompatible pointer type
    fs/yaffs2/yaffs_vfs.c:447: warning: initialization from incompatible pointer type
    fs/yaffs2/yaffs_vfs.c: In function 'yaffs_mtd_put_super':
    fs/yaffs2/yaffs_vfs.c:2514: error: 'struct mtd_info' has no member named 'sync'
    fs/yaffs2/yaffs_vfs.c:2515: error: 'struct mtd_info' has no member named 'sync'
    fs/yaffs2/yaffs_vfs.c: In function 'yaffs_internal_read_super':
    ........
    ........
    通过建立其source insight工程查询代码:
    mtd->sync
    struct mtd_info *mtd
    void (*_sync) (struct mtd_info *mtd);
    mtd_info结构体里是带下划线的_
    后面的错误也是这样修改。
    fs/yaffs2/yaffs_vfs.c:2967
    root = d_make_root(inode); // d_alloc_root(inode);
    编译:
    make zImage
    fs/yaffs2/yaffs_mtdif.c: In function 'nandmtd_erase_block':
    fs/yaffs2/yaffs_mtdif.c:42: error: 'struct mtd_info' has no member named 'erase'
    make[2]: *** [fs/yaffs2/yaffs_mtdif.o] Error 1
    加下划线
    编译:
    make zImage
    fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_write_chunk_tags':
    fs/yaffs2/yaffs_mtdif1.c:138: error: 'struct mtd_info' has no member named 'write_oob'
    fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_read_chunk_tags':
    fs/yaffs2/yaffs_mtdif1.c:200: error: 'struct mtd_info' has no member named 'read_oob'
    fs/yaffs2/yaffs_mtdif1.c:223: error: 'struct mtd_info' has no member named 'block_isbad'
    fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_mark_block_bad':
    fs/yaffs2/yaffs_mtdif1.c:291: error: 'struct mtd_info' has no member named 'block_markbad'
    fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_query_block':
    fs/yaffs2/yaffs_mtdif1.c:341: error: 'struct mtd_info' has no member named 'block_isbad'
    make[2]: *** [fs/yaffs2/yaffs_mtdif1.o] Error 1 
    加下划线
    编译:
    make zImage
    又出现如上错,同样修改方法。
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    cp arch/arm/boot/uImage arch/arm/boot/uImage-v2.0
    5. 制作、烧写yaffs映象
    [root@localhost nfs_root_hyx]# mkyaffs2image fs_mini_mdev_new_hyx fs_mini_new.yaffs2
    uboot:
    nfs 30000000 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_new.yaffs2
    nand erase.part rootfs
    nand write.yaffs 30000000 260000  $filesize

    启动:
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.0
    bootm 32000000
    错误:
    yaffs: dev is 32505859 name is "mtdblock3" rw
    yaffs: passed flags ""
    VFS: Mounted root (yaffs filesystem) on device 31:3.
    Freeing init memory: 172K
    Kernel panic - not syncing: No init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
    Backtrace: 
    [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c) 
    发现1.1.6的UBOOT没问题,所以就是我们移植的新UBOOT有BUG:
    driversmtd andNand_util.c

    if (!need_skip && !(flags & WITH_DROP_FFS)) {
    改为
    if (!need_skip && !(flags & WITH_DROP_FFS) && !(flags & WITH_YAFFS_OOB)) {
    编译
    make distclean
    make smdk2440-hyx_config
    make
    cp u-boot.bin u-boot-v7.4.bin
    再次烧录yaffs文件
    nfs 30000000 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_new.yaffs2
    nand erase.part rootfs
    nand write.yaffs 30000000 260000  $filesize
    烧uImage镜像试启动:
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.0
    bootm 32000000
    错误:
    yaffs: dev is 32505859 name is "mtdblock3" rw
    yaffs: passed flags ""
    VFS: Mounted root (yaffs filesystem) on device 31:3.
    Freeing init memory: 172K
    Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004

    Backtrace: 
    [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c)
    r6:c3819d60 r5:c05a6b14 r4:c05a6b14
    [] (dump_stack+0x0/0x1c) from [] (panic+0x7c/0x1d0)

    解决办法:重新配置内核支持EABI
    make menuconfig
    Kernel Features  --->
         [*] Use the ARM EABI to compile the kernel
         [*]   Allow old ABI binaries to run with this kernel (EXPERIMENTAL)
    编译:
    make zImage
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    cp arch/arm/boot/uImage arch/arm/boot/uImage-v2.1
    烧uImage镜像试启动:
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.1
    bootm 32000000
    启动成功!!!
    drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
    ALSA device list:
     No soundcards found.
    yaffs: dev is 32505859 name is "mtdblock3" rw
    yaffs: passed flags ""
    VFS: Mounted root (yaffs filesystem) on device 31:3.
    Freeing init memory: 164K

    Please press Enter to activate this console. 

    ok,到现在位置内核的移植已基本完成,至于其裁剪可以后再说。
    后续的实验只是将内核下载到内存中直接运行系统。所以其大小超过了2M无所谓。

    3.制作补丁和保存当前配置文件
    保存配置文件:
    [root@localhost linux-3.4.2]# cp .config config-hyx-3.4.2
    制作补丁:
    [root@localhost linux-3.4.2]# make distclean
    [root@localhost hyx]# tar xzf linux-3.4.2.tar.gz
    diff -urNwB linux-3.4.2 linux-3.4.2-hyx/linux-3.4.2 > linux-3.4.2-hyx-v1.0.diff

    试使用补丁:
    [root@localhost linux-3.4.2]# patch -p1 < ../linux-3.4.2-hyx-v1.0.diff
    [root@localhost linux-3.4.2]# cp ../config-hyx-3.4.2 .config
    make zImage
    试烧打补丁后的uImage镜像试启动:
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2/arch/arm/boot/uImage
    bootm 32000000
    启动成功!!!
    4.移植网卡
    修改:Mach-smdk2440.c (linux-3.4.2archarmmach-s3c24xx) 4283 2014/8/7
    添加修改:
    /*
     * The DM9000 has no eeprom, and it's MAC address is set by
     * the bootloader before starting the kernel.
     */
    /* DM9000AEP 10/100 ethernet controller */


    #define MACH_SMDK2440_DM9K_BASE (S3C2410_CS4 + 0x300)


    static struct resource smdk2440_dm9k_resource[] = {
    [0] = {
    .start = MACH_SMDK2440_DM9K_BASE,
    .end   = MACH_SMDK2440_DM9K_BASE + 3,
    .flags = IORESOURCE_MEM
    },
    [1] = {
    .start = MACH_SMDK2440_DM9K_BASE + 4,
    .end   = MACH_SMDK2440_DM9K_BASE + 7,
    .flags = IORESOURCE_MEM
    },
    [2] = {
    .start = IRQ_EINT7,
    .end   = IRQ_EINT7,
    .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
    }
    };




    static struct dm9000_plat_data smdk2440_dm9k_pdata = {
    .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
    };


    static struct platform_device smdk2440_device_eth = {
    .name = "dm9000",
    .id = -1,
    .num_resources = ARRAY_SIZE(smdk2440_dm9k_resource),
    .resource = smdk2440_dm9k_resource,
    .dev = {
    .platform_data = &smdk2440_dm9k_pdata,
    },
    };


    static struct platform_device *smdk2440_devices[] __initdata = {
    &s3c_device_ohci,
    &s3c_device_lcd,
    &s3c_device_wdt,
    &s3c_device_i2c0,
    &s3c_device_iis,
    &smdk2440_dm9k_pdata,
    };
    添加头文件#include 
    最后编译:
    cp config-hyx .config
    make zImage
    /home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage
    cp arch/arm/boot/uImage arch/arm/boot/uImage-v3.0
    nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v3.0
    bootm 32000000
    启动后配置eth0,mount
    / # ifconfig eth0 10.1.30.200
    dm9000 dm9000: eth0: link down
    / # dm9000 dm9000: eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
    / # 
    / # mount -t nfs -o nolock,vers=2 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx /mnt
    成功的挂载上去。


    最后制作补丁:
    [root@localhost linux-3.4.2]# make distclean
    [root@localhost hyx]# tar xzf linux-3.4.2.tar.gz
    diff -urNwB linux-3.4.2 linux-3.4.2-hyx/linux-3.4.2 > linux-3.4.2-hyx-v2.0.diff


    这次是真的结束了!!!!!


    PS:发现在Dm9000.c (linux-3.4.2drivers etethernetdavicom) 39386 2012/6/9中
    #define CARDNAME "dm9000"
    #define DRV_VERSION "1.31" 
    此网卡驱动的版本较低!!
    后面移植dm9000最新的网卡驱动。
    详细请见《2014-arm-dm9000网卡驱动移植linux3.4.2.txt》
    /****************************************************************************/

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  • 原文地址:https://www.cnblogs.com/Zyf2016/p/6337796.html
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